Bibliography and Index of the Sirenia and Desmostylia  

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"Beatty, Brian Lee"

Beatty, Brian Lee: SEE ALSO Domning, 2001b. (detail)
 
D
 Beatty, Brian Lee (detail)
   
2006a
Rediscovered specimens of Cornwallius (Mammalia, Desmostylia) from Vancouver Island, British Columbia, Canada.
www.PalArch.nl, vertebrate paleontology 1(1): 5 pp. 2 figs. Jan. 2006.
–Describes two right femora from the type locality of C. sookensis.
 
D
 Beatty, Brian Lee (detail)
   
2006b
Specimens of Cornwallius sookensis (Desmostylia, Mammalia) from Unalaska Island, Alaska.
Jour. Vert. Pal. 26(3): 785-787. 1 fig. Sept. 11, 2006.
 
 
 Domning, Daryl Paul; Beatty, Brian Lee (detail)
   
2007
Use of tusks in feeding by dugongid sirenians: observations and tests of hypotheses. In: J.S. Reidenberg & J.T. Laitman (eds.), Anatomical adaptations of aquatic mammals.
Anat. Rec. 290(6): 523-538. 1 tab. 6 figs. 10.1002/ar.20540 June 2007 (Mailed week of May 21, 2007).
 
D
 Beatty, Brian Lee (detail)
   
2009
New material of Cornwallius sookensis (Mammalia: Desmostylia) from the Yaquina Formation of Oregon.
Jour. Vert. Pal. 29(3): 894-909. 11 figs. Sept. 12, 2009.
 
 
 Beatty, Brian Lee; Geisler, Jonathan (detail)
   
2010
A stratigraphically precise record of Protosiren (Protosirenidae, Sirenia) from North America.
Neues Jb. Geol. Pal. Abh. 258(2): 185-194. 1 fig. Publ. online Aug. 2010.
 
 
 Beatty, Brian Lee; Vitkovski, Taisia; Lambert, Olivier; Macrini, Thomas E. (detail)
   
2012
Osteological associations with unique tooth development in manatees (Trichechidae, Sirenia): a detailed look at modern Trichechus and a review of the fossil record.
Anat. Rec. 295: 1504-1512. 4 figs. https://doi.org/10.1002/ar.22525
 
D
 Beatty, Brian Lee; Cockburn, Thomas C. (detail)
   
2015
New insights on the most primitive desmostylian from a partial skeleton of Behemotops (Desmostylia, Mammalia) fromVancouver Island, British Columbia.
Jour. Vert. Pal. 35(5): e979939 (15 pp.). 15 figs. DOI: 10.1080/02724634.2015.979939 Sept. 2015.
–ABSTRACT: A partial articulated skeleton of a desmostylian was found in siltstone of the Sooke Formation in the streambed at the mouth of the Sombrio River in Juan De Fuca Provincial Park, Vancouver Island, British Columbia, Canada. Another exposure of the Sooke Formation southeast of the locality has been dated to Chron C6Cr age, 24.1–24.8 Ma. This specimen includes the left side of the skull, two molars, a premolar, canines, partial scapula, nearly complete humerus, and numerous vertebrae and ribs. Molar characteristics are the same as material of Behemotops proteus from the Pysht Formation of Washington State, which is near the type locality of Behemotops proteus of the upper Oligocene Pysht Formation, Washington State. Previous specimens of B. proteus were limited to lower jaws and portions of the upper and lower postcanine dentitions. The slightly smaller Behemotops katsuiei from Japan is known from more elements, yet its cranial material is limited to the posterior portion of the cranium and a small portion of the zygomatic arch. This new material allows us to see that Behemotops cf. B. proteus had cranial features much like those seen in Cornwallius sookensis of North America. These include a postorbital process of the jugal, with the zygomatic process of the squamosal not dorsally expanded, a concave hard palate, enlarged canine tusks that point ventrally, and a narrow, curved incisor arcade on a narrow rostrum. This is different from specimens previously referred to as Behemotops emlongi and then synonymized with B. proteus, which have a broad symphysis with large tusks. These specimens formerly known as B. emlongi are now referred to a new genus [Seuku; Seuku emlongi, n.comb.].
 http://zoobank.org/urn:lsid:zoobank.org:pub:A528C91D-8ED7-4A7E-BBF2-82BA296D10E4
 
D
 Santos, Gabriel-Philip; Parham, James F.; Beatty, Brian Lee (detail)
   
2016
New data on the ontogeny and senescence of Desmostylus (Desmostylia, Mammalia).
Jour. Vert. Paleo. 36(2): e1078344 (7 pp.) 6 figs. Mar. 2016.
 
D
 Matsui, Kumiko; Kimura, Yuri; Nagata, Mitsuhiro; Inose, Hiroaki; Ikeda, Kazuya; Beatty, Brian Lee; Obayashi, Hideyuki; Hirata, Takafumi; Otoh, Shigeru; Shinmura, Tatsuya; Agematsu, Sachiko; Sashida, Katsuo (detail)
   
2018
A long-forgotten 'dinosaur' bone from a museum cabinet, uncovered to be a Japan's iconic extinct mammal, Paleoparadoxia (Desmostylia, Mammalia).
Royal Society Open Science 5: 172441. 1 tab. 7 figs. http://dx.doi.org/10.1098/rsos.17244. Supplementary material available at https://doi.org/10.6084/m9.figshare.c.4175684.
–ABSTRACT: Here, we report a new 'discovery' of a desmostylian fossil in the geological collection at a national university in Japan. This fossil was unearthed over 60 years ago and donated to the university. Owing to the original hand-written note kept with the fossil in combination with interview investigation, we were able to reach two equally possible fossil sites in the town of Tsuchiyu Onsen,Fukushima. Through the interviews, we learned that the fossil was discovered during construction of a debris flow barrier and that it was recognized as a 'dinosaur' bone among the locals and displayed in the Village Hall before/until the town experienced a fire disaster in 1954. As scientific findings, the fossil was identified to be a right femur of Paleoparadoxia (Desmostylia), which shows well-preserved muscle scars on the surface. The age was estimated to be 15.9 Ma or younger in zircon-dating. This study shows an excellent case that historical and scientific significances could be extracted from long-forgotten uncatalogued specimens as long as the original information is retained with the specimens.
 
 
 Domning, Daryl Paul; Beatty, Brian Lee (detail)
   
2019
Fossil Sirenia of the West Atlantic and Caribbean region. XII. Stegosiren macei, gen. et sp. nov.
Jour. Vert. Pal. 39(3): e1650369 (13 pages). 3 tabs. 8 figs. DOI: 10.1080/02724634.2019.1650369. "May 2019" (publ. online Sept. 13, 2019).
–ABSTRACT: Stegosiren macei, a new genus and species of halitheriine dugongid from the mid-Oligocene of South Carolina, U.S.A. (Ashley and Chandler Bridge formations, late Rupelian–late Chattian), represents a stage of halitheriine evolution more derived than that of the Old World early Oligocene Eosiren imenti and Halitherium schinzii, but slightly less derived than the West Atlantic late Oligocene Metaxytherium albifontanum. It is more comparable in stage of evolution to its early Oligocene contemporaries Caribosiren turneri and Priscosiren atlantica and may be a sister taxon of these two. It is distinguished autapomorphically from all other sirenians by a notably broadened frontal roof and a thickened anterior tip of the frontal, which formed a butt joint with the premaxilla. Analogous (independently evolved) joints in several other sirenians (principally dugongines) are correlated with enlarged upper tusks thought to be used for excavating seagrass rhizomes. This suggests that large tusks also may have been present (although not preserved) in Stegosiren, which is only the second halitheriine in which such a feature has been observed. Stegosiren macei brings to at least seven the number of potentially sympatric sirenian species lineages known from the West Atlantic-Caribbean Oligocene (six or more from South Carolina alone). This extraordinary sirenian diversity, unmatched elsewhere in the world, poses problems for ecomorphology and feeding-niche partitioning.
Daryl P. Domning, Research Associate, Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, D.C. 20560, and Laboratory of Evolutionary Biology, Department of Anatomy, College of Medicine, Howard University, Washington, D.C. 20059.
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